Shoot growth of Merlot and Cabernet Sauvignon grapevine varieties

Borghezan, Marcelo; Gavioli, Olavo; Vieira, Hamilton Justino; Silva, Aparecido Lima da

doi:10.1590/s0100-204x2012000200008

Cited by 14 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In our study, the grapevine growth profile differs in each year, with different peak greenness and growth rates. Maximum growth rate was consistent with the FLO stage, with growth reductions starting around VER, which is supported by previous research [Borghezan et al, 2012;Scarpare et al, 2012]. Altogether, the outcomes suggest that a slow-steady growth rate throughout the growing season can lead to longer phenological intervals, while rapid growth peaks tend to shorten the interphase.…”

supporting

confidence: 88%

Examining the relationship between the Enhanced Vegetation Index and grapevine phenology

Fraga

Amraoui

Malheiro

et al. 2014

European Journal of Remote Sensing

View full text Add to dashboard Cite

Monitoring the main grapevine phenological stages is a key procedure for optimizing vineyard activities and improving yield and quality attributes. Remote sensing may be an effective and practical monitoring tool, as data from on-board satellite sensors can measure vegetative growth. In the current study, a 12-year time series of four main phenophases (budburst, flowering, veraison and harvest) were obtained from an experimental vineyard located in Lisbon (Portugal). LANDSAT surface reflectances were used to calculate the Enhanced Vegetation Index (EVI) and derived metrics. Both time series were then analysed. Results show statistically significant relationships between vegetation metrics and phenological timings and intervals, such as the linkage between the peak greenness and flowering/veraison. The current study highlights the applicability of remote sensing to monitor grapevine phenology in both retrospective and real-time, bringing an added-value to the winemaking sector.

show abstract

supporting

confidence: 88%

Examining the relationship between the Enhanced Vegetation Index and grapevine phenology

Fraga

Amraoui

Malheiro

et al. 2014

European Journal of Remote Sensing

View full text Add to dashboard Cite

show abstract

“…The main shoot growth rate and pruning weight also increased under plastic covered probably due, mainly, to the highest minimum air temperature (Table 1) as compared to uncovered treatments (Figures 1a,d). The shoot growth is highly dependent on air temperature, being linearly related to thermal time for all stages of leaf development from budbreak to veraison (Borghezan et al, 2012;Lebon et al, 2004). Furthermore, the high night temperature may have increased the respiration activity providing more energy and carbon skeleton for shoot growth of covered grapevine (Hendrickson et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

Physiological and agronomical responses of Syrah grapevine under protected cultivation

et al. 2015

View full text Add to dashboard Cite

The performance of Syrah grapevine under protected cultivation with different plastic films was evaluated during 2012 and 2013 seasons in South of Minas Gerais State. Agronomical and physiological measurements were done on eight years old grapevines, grafted onto '1103 Paulsen' rootstock cultivated under uncovered conditions, covered with transparent and with diffuse plastic films. Both plastic covers induced the highest shoot growth rate and specific leaf area. The diffuse plastic induced greater differences on leaf area, pruning weight and leaf chlorophyll content as compared to uncovered vines. Grapevines under diffuse plastic also had the lowest rates of photosynthesis, stomatal conductance and transpiration. Leaf starch, glucose and fructose contents were not affected by treatment, but leaf sucrose was reduced by transparent plastic. The leaf and stem water potential were higher under diffuse plastic. In 2013, grapevines under diffuse plastic showed the highest yields mainly due to decreased rot incidence and increased cluster weight. Furthermore, berries under diffuse plastic showed the highest anthocyanins concentration. The use of diffuse plastic induces more agronomical benefits to produce Syrah grape under protected cultivation.

show abstract

“…É nele que ocorre a primeira fase de crescimento dos frutos, em que a atividade fotossintética das plantas é alta. Essa fase é chamada de autossuficiente, pois todos os fotoassimilados pela planta são consumidos para seu desenvolvimento (BORGHEZAN et al, 2012). Nas plantas podadas precocemente, esse período ocor-DETERMINAÇÃO DE ÍNDICES BIOMETEOROLÓGICOS DA VIDEIRA ... reu nos meses de setembro a outubro, enquanto nas podas mais tardias ocorreu nos meses de outubro a dezembro, meses com temperaturas e fotoperíodos crescentes (Figura 1).…”

Section: Resultsunclassified

Determinação de índices biometeorológicos da videira 'Niagara Rosada' (Vitis labrusca L.) poda, em diferentes épocas

et al. 2013

View full text Add to dashboard Cite

RESUMO-O objetivo deste estudo foi determinar os índices: biometeorológico de Primault (IB), heliotérmico de Huglin (IH), heliotérmico de Geslin (IHG) e as unidades fototérmicas (UF) da cultivar Niagara Rosada, podada em diferentes épocas, no inverno e no verão. O experimento foi realizado em Piracicaba-SP, durante três anos agrícolas, avaliando-se 24 ciclos de produção:12 com poda de inverno e 12 com poda de verão. O delineamento experimental utilizado foi o de blocos casualizados, sendo os tratamentos correspondentes a oito datas de poda: 20/julho, 04/agosto, 19/agosto e 03/setembro (inverno) e 01/fevereiro, 15/fevereiro, 02/ março e 16/março (verão). A duração em dias e os valores dos índices IB, IH, IHG e UF foram analisados pelo teste de Tukey ao longo das datas de poda e pelo teste F para constrastes ortogonais para as épocas de poda, ambos a 5% de probabilidade. Os resultados mostraram que a inclusão do elemento meteorológico insolação ou do fator fotoperíodo à base do conceito térmico não mostrou ser eficaz na determinação de um valor médio único na previsão do ciclo de produção, para videiras podadas em diferentes épocas; nenhum dos índices biometeorológicos estudados é eficiente para a previsão da data de colheita em videiras podadas em diferentes épocas; independentemente da época em que o ciclo se inicia, a média de 120 dias pode ser usada como estimativa da data de colheita das videiras em região de clima Cwa. Termos para indexação: uva, índice biometeorológico, índice heliotérmico, unidades fototérmicas. BIOMETEOROLOGICAL INDEXES DETERMINATION FOR GRAPE 'NIAGARA ROSADA' (Vitis labrusca L.) PRUNED IN DIFFERENT SEASONSABSTRACT-The aim of this study was to determine four biometeorological indexes approach: Primault (P), Heliothermic Huglin Index (HHI), Heliothermic Geslin Index (HGI) and Photothermal Units (PU) for 'Niagara Rosada' cultivar pruned in the winter and summer seasons. The experiment was carried out on 13-year-old plants in Piracicaba, state of São Paulo-Brazil, evaluating 24 production cycles, 12 from the winter pruning and 12 from the summer pruning. The statistical design was comprised of randomized blocks, using the pruning dates as treatment: July 20th, August 4th, August 19th, and September 3rd (winter); February 1st, February15th, March 2nd, and March 16th (summer). Comparison of the mean values of P, HHI, HGI and PU among pruning dates was evaluated by the Tukey test, and comparison between pruning seasons was made by the F test for orthogonal contrasts, both at the 5% probability level. The results show that the inclusion of the meteorological element insolation and the photoperiod factor on thermal sum requirement is not proved effective in determining an average value for cycle prediction in vines pruned in different seasons; none of the biometeorological indexes are efficient for harvest prediction in vines pruned in different seasons; independent of the time when the cycle starts, the average of 120 days can be used to estimate the harvest date of vines in climate region Cwa.

show abstract

Shoot growth of Merlot and Cabernet Sauvignon grapevine varieties

Cited by 14 publications

References 25 publications

Examining the relationship between the Enhanced Vegetation Index and grapevine phenology

Examining the relationship between the Enhanced Vegetation Index and grapevine phenology

Physiological and agronomical responses of Syrah grapevine under protected cultivation

Determinação de índices biometeorológicos da videira 'Niagara Rosada' (Vitis labrusca L.) poda, em diferentes épocas

Contact Info

Product

Resources

About